You could easily plant a receiver beneath the skin of a person sans their knowledge. If that receiver is near/on/in the right bone, it could sound like it’s coming from inside the head.
Or via injection?>>>> Whuh Ohhh
Gee. Won’t it be great when Elon gets his neurolink device mass produced and implemented.
It is based on the device created by Mengele and implanted. A cabal survivor or two has it still. Unable to remove.